chromatids

[遗]染色单体
常用释义
n. [遗]染色单体；染色分体（chromatid 的复数）

扩展信息

染色单体
每个染色体包含染色单体(chromatids),2个染色单体上各有一个由特殊的DNA序列构成的文档日志 暂无日志信息 文档留言 >>> …
染色分体
(B)5.染色分体(Chromatids)末分离且沿细胞赤道板排列，此属於细胞有丝分裂的：(A)前期 (B)中期 (C)后期 (D)末期。 (D)6.有关 …
染色丝
...一前期(prophaseⅠ)，每一染色体的两条姊妹染色丝(chromatids)与其同源染色体的两条姊妹染色丝点接点地排列成行。
姐妹染色分体
...生在有丝分裂中？ (A) 染色体排列在纺锤体中点(spindle midpoint)上 (B) 核膜消失 (C) DNA 合成 (D) 分离姐妹染色分体(chrom…
染色体丝
定义：有丝分裂(mitosis)中的一期，此时每一个染色体丝(chromatids)分开且移动到微管纺锤体(microtubular spindle)的相反两极。

例句

At the beginning of prophase the chromosomes each consist of two highly condensed chromatids attached to each other at a centromere .

Alternatively, like allopolyploids, they may arise by the nondisjunction of chromatids during the mitotic division of a zygote.

Next, during anaphase, the two sister chromatids of each chromosome split, and one from each pair is drawn toward each pole of the cell.

Throughout prophase I, sister chromatids behave as a unit and are identical except for the region where crossover occurred.

In meiosis it is not until anaphase II that the centromere divides, the chromatids being termed daughter chromosomes after separation.

Anaphase The stage in mitosis or meiosis when chromatids are pulled toward opposite poles of the nuclear spindle.

In meiosis, the association of four homologous chromatids seen during the pachytene stage of prophase.

常用短语

sister chromatid
sister chromatid - 姊妹染色半体

更新时间：2025-04-29 17:17